21068689320

Names of 21068689320

• Cardinal: 21068689320 can be written as Twenty-one billion, sixty-eight million, six hundred eighty-nine thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.106868932 × 10¹⁰

Factors of 21068689320

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 157817

Divisors of 21068689320

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 53 56 60 63 70 72 84 90 105 106 120 126 140 159 168 180 210 212 252 265 280 315 318 360 371 420 424 477 504 530 630 636 742 795 840 954 1060 1113 1260 1272 1484 1590 1855 1908 2120 2226 2385 2520 2968 3180 3339 3710 3816 4452 4770 5565 6360 6678 7420 8904 9540 11130 13356 14840 16695 19080 22260 26712 33390 44520 66780 133560 157747 315494 473241 630988 788735 946482 1104229 1261976 1419723 1577470 1892964 2208458 2366205 2839446 3154940 3312687 3785928 4416916 4732410 5521145 5678892 6309880 6625374 7098615 8360591 8833832 9464820 9938061 11042290 11357784 13250748 14197230 16563435 16721182 18929640 19876122 22084580 25081773 26501496 28394460 33126870 33442364 39752244 41802955 44169160 49690305 50163546 56788920 58524137 66253740 66884728 75245319 79504488 83605910 99380610 100327092 117048274 125408865 132507480 150490638 167211820 175572411 198761220 200654184 234096548 250817730 292620685 300981276 334423640 351144822 376226595 397522440 468193096 501635460 526717233 585241370 601962552 702289644 752453190 877862055 1003270920 1053434466 1170482740 1404579288 1504906380 1755724110 2106868932 2340965480 2633586165 3009812760 3511448220 4213737864 5267172330 7022896440 10534344660 21068689320
• Sum of all divisors σ(n): 79732149120
• Sum of proper divisors (its aliquot sum) s(n): 58663459800
• 21068689320 is an abundant number, because the sum of its proper divisors (58663459800) is greater than itself. Its abundance is 37594770480

Bases of 21068689320

• Binary: 10011100111110010101010111110101000₂
• Hexadecimal: 0x4E7CAAFA8
• Base-36: 9OFR4Q0

Squares and roots of 21068689320

• 21068689320 squared (21068689320²) is 443889669662682062400
• 21068689320 cubed (21068689320³) is 9352173542480477570642453568000
• The square root of 21068689320 is 145150.5746457793
• The cube root of 21068689320 is 2761.9289760279

Scales and comparisons

• 21,068,689,320 seconds is equal to 669 years, 47 weeks, 5 days, 13 hours, 42 minutes.
• To count from 1 to 21,068,689,320 would take you about one thousand, three hundred thirty-nine years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21068689320 cubic inches would be around 230.2 feet tall.

Recreational maths with 21068689320

• 21068689320 backwards is 02398686012
• 21068689320 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21068689320's digits is 45
• More coming soon!